RT Journal Article SR Electronic T1 Intrathecal Mepivacaine with and Without Fentanyl for Knee Arthroscopy JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 52 OP 52 DO 10.1136/rapm-00115550-199924031-00052 VO 24 IS Suppl 1 A1 Richard L. Kahn A1 M. H. Susman YR 1999 UL http://rapm.bmj.com/content/24/Suppl_1/52.abstract AB